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Chapter 13 - Excretion - Test 3
1.
The matabolism can be generally divided into the catabolism and anabalism.
1) True
2) False
2.
The urea is the least poisionous nitrogenous material.
1) True
2) False
3.
The process of removing the waste products from the body is known as respiration.
1) False
2) True
4.
The plants have no specialized organs or systems for excretion.
1) False
2) True
5.
Oxygen is realesed as a result of respiration.
1) False
2) True
6.
The excess water and CO
2
are removed through stomata of plants at night.
1) True
2) False
7.
The process of photosynthesis is stopped at night.
1) True
2) False
8.
The excess water is removed in the form of water vapours by the process of photosynthesis.
1) True
2) False
9.
The excess water is removed in strawberry by the process of guttation.
1) True
2) False
10.
In planaria and other flatworms, nephridia are present for excretion.
1) False
2) True
11.
Each segment of the earthworm s body contains 3 pairs of nephridia.
1) True
2) False
12.
Ammonia is even more toxic than urea.
1) True
2) False
13.
Latex is produced by rubber plant.
1) False
2) True
14.
Contractile vacuoles are present in earthworm.
1) False
2) True
15.
The depression in the center of concave side of the kidney is called renal pelvis.
1) False
2) True
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